Home / 3,069.60-4,236.64-2,021.60

Finding the Fourth Proportional to 3,069.60, 4,236.64 and 2,021.60

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Solution

The fourth proportional to 3,069.60, 4,236.64 and 2,021.60 is: 2,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.60 : 4,236.64 = 2,021.60 : x
  2. Step 2: Convert to fraction form
    3,069.60/4,236.64 = 2,021.60/x
  3. Step 3: Cross multiply
    3,069.60x = 4,236.64 × 2,021.60
  4. Step 4: Simplify right side
    3,069.60x = 8,564,791.42
  5. Step 5: Solve for x
    x = 8,564,791.42/3,069.60
  6. Step 6: Final answer
    x = 2,790.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.